- Exclude open invoice payments from the checkout flow and route them

through hpp
 - Code changes based on review

Gateway/Response/CheckoutPaymentsDetailsHandler.php

@@ -78,5 +78,9 @@ class CheckoutPaymentsDetailsHandler implements HandlerInterface
         // do not close transaction so you can do a cancel() and void
         $payment->setIsTransactionClosed(false);
         $payment->setShouldCloseParentTransaction(false);
+
+		$payment->unsAdditionalInformation('paymentData');
+		$payment->unsAdditionalInformation('paRequest');
+		$payment->unsAdditionalInformation('md');
     }
 }